HEAT SHRINKABLE TUBE, MANUFACTURING METHOD THEREFOR AND SOLDER SLEEVE

• Main Authors: AZUMA SHUJI, FUKUMOTO RYOTA, ISHIBASHI KEIJI
• Format: Patent
• Language: English; Japanese
• Published: 07.12.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; BLASTING; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONDUCTORS; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL PROCESSES OF COMPOUNDING; HEATING; INSULATORS; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PIPES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a heat shrinkable tube capable of reducing manufacturing cost and variations of quality even though using PTFE, a manufacturing method therefor and a solder sleeve using the heat shrinkable tube.SOLUTION: The heat shrinkable tube has a cylindrical heat shrinkable layer mainly containing polytetrafluoroethylene and storage elastic modulus of the heat shrinkable layer at 340°C to 400°C of 1 MPa to 7 MPa. The manufacturing method of the heat shrinkable tube has a diameter expansion process for heating a tube mainly containing polytetrafluoroethylene and expanding a hole and storage elastic modulus at 340°C to 400°C of the tube is 1 MPa to 7 MPa. The solder sleeve has the heat shrinkable tube, a solder material and a dam material.SELECTED DRAWING: None 【課題】本発明は、ＰＴＦＥを用いながらも製造コスト及び品質のバラツキを低減することができる熱収縮チューブ、その製造方法及びこの熱収縮チューブを用いたソルダースリーブを提供することを課題とする。【解決手段】本発明の一態様に係る熱収縮チューブは、ポリテトラフルオロエチレンを主成分とする円筒状の熱収縮層を備え、上記熱収縮層の３４０℃以上４００℃以下での貯蔵弾性率が１ＭＰａ以上７ＭＰａ以下である。本発明の別の一態様に係る熱収縮チューブの製造方法は、ポリテトラフルオロエチレンを主成分とするチューブを加熱及び拡径する拡径工程を備え、上記チューブの３４０℃以上４００℃以下での貯蔵弾性率が１ＭＰａ以上７ＭＰａ以下である。本発明の別の一態様に係るソルダースリーブは、当該熱収縮チューブと、ハンダ材と、ダム材とを備える。【選択図】なし